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a small particle that is the building block of matter
Atom
what happens when atoms combine
They form different types matter
A substance made up of only one kind of atom
Element
Give a example of a element
EX: Helium=He Neon=Ne Oxygen=O
A substance made up of two or more elements that are chemically joined in a specific combination
compound
give an example of a compound
EX: H2O- water CO2- Carbon Dioxide
2 or more atoms held together by chemical bonds and act as a unit
molecules
give an example of a molecule
O2= Oxygen Gas O3= Ozone
Name a solvent
Milk
Name solute
the chocolate that you put in milk
What is a positive charge located in the nucleas
a proton
What is a negative charge located in the electron cloud
a Electron
What is a neutral charge located in the nucleas
Neutrons
what is most of the mass of the atom is located here in the center of an atom called
the nucleas
what is the region around he nucleas which is mostly empty space called? Electrons move about in this area
The Electron Cloud
What do scientists classify matter into _______________
&__________________
Substances and Mixtures
